1-15044151-C-T

Variant names:

• chr1-15044151-C-T
• rs1673219810
• NM_201628.3:c.718C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_201628.3(KAZN):​c.718C>T​(p.Leu240Leu) variant causes a synonymous change. The variant allele was found at a frequency of 0.00000138 in 1,449,412 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: KAZN NM_201628.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.90
• Publications: 0 publications found

Genes affected

KAZN (HGNC:29173): (kazrin, periplakin interacting protein) This gene encodes a protein that plays a role in desmosome assembly, cell adhesion, cytoskeletal organization, and epidermal differentiation. This protein co-localizes with desmoplakin and the cytolinker protein periplakin. In general, this protein localizes to the nucleus, desmosomes, cell membrane, and cortical actin-based structures. Some isoforms of this protein also associate with microtubules. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional splice variants have been described but their biological validity has not been verified. [provided by RefSeq, Aug 2011]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.28).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_201628.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KAZN	NM_201628.3	MANE Select	c.718C>T	p.Leu240Leu	synonymous	Exon 4 of 15	NP_963922.2	Q674X7-1
	KAZN	NM_001437721.1		c.718C>T	p.Leu240Leu	synonymous	Exon 5 of 9	NP_001424650.1
	KAZN	NM_015209.3		c.718C>T	p.Leu240Leu	synonymous	Exon 4 of 8	NP_056024.1	Q674X7-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KAZN	ENST00000376030.7	TSL:5 MANE Select	c.718C>T	p.Leu240Leu	synonymous	Exon 4 of 15	ENSP00000365198.2	Q674X7-1
	KAZN	ENST00000503743.5	TSL:1	c.718C>T	p.Leu240Leu	synonymous	Exon 5 of 9	ENSP00000426015.1	Q674X7-2
	KAZN	ENST00000361144.9	TSL:1	c.700C>T	p.Leu234Leu	synonymous	Exon 4 of 8	ENSP00000354727.5	Q674X7-3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1449412 Hom.: 0 Cov.: 31 AF XY: 0.00000278 AC XY: 2 AN XY: 720150

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33210

American (AMR) AF: 0.00 AC: 0 AN: 44086

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25856

East Asian (EAS) AF: 0.00 AC: 0 AN: 38916

South Asian (SAS) AF: 0.00 AC: 0 AN: 85128

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52190

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5088

European-Non Finnish (NFE) AF: 0.00000181 AC: 2 AN: 1105296

Other (OTH) AF: 0.00 AC: 0 AN: 59642

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.28
CADD	Benign	10
DANN	Benign	0.77
PhyloP100		3.9
Mutation Taster		=89/11	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1673219810; hg19: chr1-15370647;